摘要
以吐氏酸的臭氧氧化为例，研究了过渡金属镍、铁、铜单组分和不同配比双组分氧化物的催化作用．附着沉淀法制备的Ｎｉ－Ｆｅ（１４）和Ｎｉ－Ｃｕ（４１）催化剂的臭氧利用率分别比γ－Ａｌ２Ｏ３载体提高了２８．９％和２４．３％．金属氧化物催化臭氧化能显著改善吐氏酸溶液的可生化性，当臭氧消耗量为０．２５－０．３５ｇ／Ｌ时，ＢＯＤ５／ＣＯＤ达到最大值０．２８．
This paper studied the property of oxides of nickel,ferrite and copper or their two components mixture that catalyzed ozonation of tobias acid solution,one of important dye intermediates.NiFe(1∶4) and NiCu(4∶1) catalysts which were prepared by the adsorptionprecipitation method performed the highest activity,their ozone utilization efficiency is 289% and 243% higher than the γAl2O3 carrier respectively.In the process of catalyzed ozonation,biodegradability of solution was greatly improved,and BOD5/COD rose to the maximum value of 028 as the ozone dosage was 025-035g/L.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1998年第4期29-32,共4页
Environmental Science
基金
中国科学院环境水化学国家重点实验室开放基金
关键词
催化
臭氧化
生物降解性
金属氧化物
废水处理
ozone oxidation,catalytic ozonation,Tobias acid solution,biodegradabiliy,metal oxidate,catalyst.
